now, nbc sport's bob costas created a controversy while talking about the kansas city chief player jovan belcher killing his girlfriend before taking his life. he says if belcher didn't have a gun he and cassandra would be alive and here he is trying to explain his comments on the o'reilly factor. >> i didn't call for any specific prohibition on guns and i voted from a column by jason whitlock and now on the fox supports website, in which he mentioned a gun culture in this country and it plays itself out in many ways, but it's about and toward guns that almost always leads to tragedy. >> not always leads to tragedy, in fact, mr. costas, i think you're a great sports caster, i really do, i thought you did a terrific job for the olympics, for the same reason i don't try to do commentary on sports you might want to do some brushing up on the facts before you comment on what you call the gun culture. here is the fact. over 4,000 times a day, in this country. 4,000 times a day, guns are use today prevent a crime by private citizens. in fact, there is 50 times more of a likelihood that a priva